Valve.



JOHN HUTCHINSON.. E WELLINGTON, lKi-KTNSAS.

VALVE.

Application filed June 6, 1917. Serial No. 173,188."

To all whom it may concern Be it known lhat l. Joux llvrcmxsox, acitizen of the lnited States, residing at Wellington, inthe county ofSumner and State of Kansashave invented a new and useful Valve, of whichthe following is a specification.

The device forming the subject matter of this application is anintcrnalcombustion engine, and the invention aims primarily to improve the valveconstruction of the engine, so that the valves may operate without backpressure.

means for operating the valve.

The invention aims, further, to improve structurally. an internalcombustion engine of the type hereinafter described, in details whichill bemade manifest as this specification proceeds. 1

With the above and other objects in view which will appear as thedescription proceeds, the invention resides in the combination andarrangement of parts and in the details of construction hereinafterdescribed and claimed, it being understood that changes in the preciseembodiment of the invention herein disclosed can be made within thescope of what is claimed, without departing from the spirit of theinvention.

In the accompanying drawings Figure 1 is a sectional View showing aportion of an internal combustion engine embodying the presentinvention;

Fig. 2 is a top plan of the engine, parts being broken away, the line1-1 in Fig. 2 indicating the. cutting plane on which Fig. 1 is taken.

Fig. 3 is a diagrammatic view showing one .The' engine forming thesubject matter of this application includes any desired number ofcylinders 1. Formed integrally with the cylinders 1 at the upper endsthereof and at one side of the cylinders are valve casings 2, therebeing two valve casings for each cylinder 1. Formed integrally with thecylinders 1 and with the valve casings 2 and located below the valvecasings2 are tubular members 3. A port a forms a commu nicat-ion betweenthe bore of each cylinder 1 and the valve casings 2 of eachcylinder,.the port 1 being defined by diverging walls 5 connecting thecylinder proper 1 with the casings 2 in a manner which will beunderstood clearly from Fig. 2. In the upper portion of the tubularmember 3 of each cylinder 1 is fashioned a pair of seats 6, i

Specification of Letters Patent.

Patented Dec. 18, 19517.

individual to the casings 2, the seats 6 be ing depressed below thelower Wall offth e port 4: as clearly shown in Fig. 1, soft-hat thevalves hereinafter described may cooperate with the seats 6 properlytoprevent leakage.

Mounted for right line sliding movement in the casings 2 are valves 7provided with packing rings 8 cooperating with the bores on the casings2. Each valve 7 includes a stem 9 passing through'the tubular member '3,there being bosses 10 on the lower Wall of each tubular member 3, inwhich the stems of the valves are slidably received, Compression springs11 surround portions of the stems 9, the upper ends of the springs 11abutting against the tubular member 3, and the lower ends of the springs11 being engaged by adjusting nuts 12 threaded onto the stems 9, theadjusting" nuts being held in position by means of lock nuts 14. Thefunction of the springs 11 is to maintain the valves 7 engaged with theseats 6, and an adjustment of the springs may be effected by rotatingthe nuts 12 and 11, in a manner which will'be understood clearly bythose'skilled in the art. A cover 15 fits upon the upper ends of thevalve casings 2 ofthe engine and is held in place by securing elements17, the cover 15 having openings 16 individual to the valve casings 2.The cylinders 1 of the engine are provided with a jacket 1.8, in the topportion of which there are openings 19 individual to the cylinders 1,the openings 19 being closed by a detachable cover 20 held to the topportion of the jacket by means of securing elements 21. A spark plug 22or like-ignition device passes through the top portion of the jacket andthrough the upper head of the cylinder 1 and is located closely. adjacent to the inner end of the port 4:. k l

The construction of the device is such, owing to the presence of theopenings 16 in Hill the covers 15, that there will be practically noback pressure on the valves 7, onevalve of each cylinder being an intake'valve,.and

the other valve being an exhaust valve. The

valves 7'may be ground readily and the construction is such that anadequate port opening is provided for. the intake and for; the exhaust.It is to be observed that when 1 the valve 7 is engaged with the seat 6,the

packing rings 8 he above the. upper Wall of the port 1, andconsequently, the packing rings are never caught, distorted or broken,

. Wheel meshing a pinion 33 on a sheet 34%, (he nmon mesfiing into anpinion on an en "s0 shaft 36 carrylng a. crank 37 wnch .vlneh the pisman38 is assembled. It will now obvious that the valves 7 are actuated by agear train indnding 'the earns; 80, the gear Wheels 32, the pinions 33and the pinions The cam 30 nmy be so made as to hold the w e 7 open anydesired length of time, simply by altering the extent of (he high pointof the cam.

Having thus desoribe l the inveniion, What i; olaimee is In an internalcombustion engine a one piece structure comprising pamfiei. 'vzfiveoasings and iiwfil'fil tubular men'zbers "up- ;ne; portions of whichform t'nebot' of the casings, the said bottoms being provided withopenings establishing communication Kmtn'een the casings and therespective tumhr members, the Casings comprising -j!iverging WalisEonning a single p011? w opens into bo l h casings: cup-shaped Va Hemounted for right fine sliding IIIOVBiE'XGEli? In the casings andcontrolling the d ings; the valves having stems s liclably 1'oeoixed inthe lower portions of the lateral tubular members; spring meansassembled 7 with the exposed portions of pile stems for holding thevalves seated; a one piece cio-- sure for the ones of both msingl's thesand closure having reduced openings indi idual means for holding theclosure on the casings. iestimony that I claim the foregoing as own, Ihave hereto affixed my si niv ture in the presence of-two Witnesses.

J 0H1 HC'TCHINSUN'.

'sVit-nesses E. H, Downin "W. H; ELLYsoN.

